This collection by a bestselling author consists of more than 560 puzzles from around the world and throughout history. Only a familiarity with elementary algebra and geometry is needed, and complete answers appear at the end. "Of immense interest." — Mathematical Gazette. 382 illustrations. Republication of the New York, 1992 edition.
The Stanford Mathematics Problem Book: With Hints and Solutions by G. Polya, J. Kilpatrick Based on Stanford University's well-known competitive exam, this excellent mathematics workbook offers students at both high school and college levels a complete set of problems, hints, and solutions. 1974 edition.
Professor Hoffmann's Best Math and Logic Puzzles by Louis Hoffmann These pleasantly perplexing highlights from the classic 1893 puzzle book abound in Victorian charm. They include both arithmetic problems and challenges involving words and letters. Complete solutions.